Alert archive / Wyoming / Winter Storm Warnings in 2015

Winter Storm Warning 6, NWS Cheyenne, WY

April 16, 2015Albany County, Carbon County, Laramie County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Apr 16, 2015, 3:41 AM MDT for Albany County, Carbon County, Laramie County, Wyoming. It took effect at Apr 16, 2015, 11:53 AM MDT. It was in force for 59 hr. 43 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 16, 2015, 3:41 AM MDT (09:41 UTC)
In effect from
Apr 16, 2015, 11:53 AM MDT
Expired
Apr 18, 2015, 11:00 PM MDT
In force
59 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 93 km from the middle of the area, began a volume at 09:40 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 16, 7:46 PM MDTSNOW 5S Cheyenne, WYPARSLEY AND I-80.
Apr 16, 9:28 PM MDTSNOW 4Cheyenne, WY3-4 INCHES IN CHEYENNE. VIA FACEBOOK.
Apr 16, 9:43 PM MDTSNOW 413 Nw Cheyenne, WYSPRINGCREEK RANCHES OFF OF HORSE CREEK ROAD
Apr 16, 9:48 PM MDTSNOW 36 Ne Cheyenne, WYSNOWING HARD. STAGECOACH ROAD AND 4 MILE ROAD.
Apr 16, 9:53 PM MDTSNOW 37 W Cheyenne, WYVIA FACEBOOK. HAPPY JACK AND ROUND TOP ROAD.
Apr 16, 11:40 PM MDTSNOW 510 N Cheyenne, WY4 TO 5 INCHES OF SNOW ON ROADS AND GROUND.
Apr 17, 12:00 AM MDTSNOW 5.2Cheyenne, WYTOTAL SNOWFALL ACCUMULATION AS OF MIDNIGHT.
Apr 17, 6:00 AM MDTSNOW 0.5Encampment, WY
Apr 17, 6:00 AM MDTSNOW 0.5Shirley Basin, WY
Apr 17, 6:00 AM MDTSNOW 45 E Cheyenne, WYVIA FACEBOOK. FARTHING ROAD AND PERSHING.
Apr 17, 6:00 AM MDTSNOW 5.9Nw Cheyenne, WY
Apr 17, 7:00 AM MDTSNOW 1.5N Sinclair, WY
Apr 17, 7:00 AM MDTSNOW 23 Nne Carpenter, WY
Apr 17, 7:00 AM MDTSNOW 23 Nw Burns, WY
Apr 17, 7:00 AM MDTSNOW 36 Wsw Burns, WY
Apr 17, 7:00 AM MDTSNOW 3.53 Nnw Cheyenne, WY
Apr 17, 7:00 AM MDTSNOW 46 Wnw Burns, WY
Apr 17, 7:00 AM MDTSNOW 4.22 Nne Cheyenne, WY
Apr 17, 7:00 AM MDTSNOW 52 Ene Cheyenne, WY
Apr 17, 7:00 AM MDTSNOW 5.26 N Cheyenne, WY
Apr 17, 7:00 AM MDTSNOW 5.69 Wsw Rock River, WY
Apr 17, 7:00 AM MDTHEAVY SNOW 617 Wnw Cheyenne, WY
Apr 17, 7:00 AM MDTSNOW 7.8Sw Elk Mountain, WY
Apr 17, 8:00 AM MDTHEAVY SNOW 6.510 N Cheyenne, WYVERY WET SNOW. SNOW WATER EQUIVALENT OF 0.88 INCHES.
Apr 17, 10:00 AM MDTHEAVY SNOW 2015 Nw Cheyenne, WYVIA FACEBOOK. NOW MELTED DOWN TO 10 INCHES AS OF 6 PM.
Apr 17, 11:30 AM MDTHEAVY SNOW 811 N Cheyenne, WY
Apr 17, 11:55 AM MDTHEAVY SNOW 7Laramie, WYESTIMATED AT LEAST 7 INCHES OF SNOWFALL ON THE NORTH SIDE OF LARAMIE. WAS TOUGH TO MAKE AN ACCURATE MEASUREMENT DUE TO WIND.
Apr 17, 12:15 PM MDTSNOW 5.53 Ne Cheyenne, WYSNOW DEPTH OF 5.5 INCHES MEASURED AT NOON
Apr 17, 1:10 PM MDTHEAVY SNOW 18Laramie, WYESTIMATED 8 INCHES OF SNOWFALL OVERNIGHT...WITH AN ESTIMATED STORM TOTAL OF 18 TO 20 INCHES SINCE 1PM WEDNESDAY
Apr 17, 5:00 PM MDTSNOW 3.624 W Saratoga, WYSAGE CREEK BASIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7850 FEET. SNOW WATER EQUIVALENT IS 0.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTSNOW 7.210 Sw Encampment, WYLITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS 0.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTSNOW 7.22 Sw Hog Park Reservoir, WYWHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 0.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTSNOW 825 W Esterbrook, WYLA PRELE CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8375 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTSNOW 9.610 Wsw Encampment, WYOLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTSNOW 1014 Sw Esterbrook, WYWINDY PEAK SNOTEL IN THE LARAMIE RANGE. ELEVATION 7900 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 10 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTSNOW 10.811 Sse Encampment, WYBLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 0.9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTSNOW 128 Wsw Encampment, WYWEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTHEAVY SNOW 20.412 W Centennial, WYNORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 1.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTHEAVY SNOW 22.821 Sse Elk Mountain, WYMEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 1.9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTHEAVY SNOW 2410 Ssw Arlington, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 2.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTHEAVY SNOW 26.612 Se Laramie, WYCROW CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8330 FEET. SNOW WATER EQUIVALENT IS 2.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTHEAVY SNOW 29.87 Nw Centennial, WYBROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 2.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.
Apr 17, 5:00 PM MDTHEAVY SNOW 306 Sw Centennial, WYCINNABAR PARK SNOTEL IN THE SNOWY RANGE. ELEVATION 9574 FEET. SNOW WATER EQUIVALENT IS 2.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 12 TO 1. ACCUMULATION WAS OVER PAST 26 HOURS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 9.7 hours before the alert went out and 274 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 00:00Z on 2015-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2015-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -62 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-62 m²/s²
0-3 km storm-relative helicity
-60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

762 
WWUS45 KCYS 160941
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
341 AM MDT THU APR 16 2015

...HEAVY SNOW AND BLOWING SNOW TO IMPACT SOUTHEAST WYOMING
MOUNTAINS AND HIGH VALLEYS FROM LATE THIS AFTERNOON THROUGH
FRIDAY MORNING...

.A STORM SYSTEM WILL REMAIN STATIONARY OVER COLORADO THROUGH
FRIDAY NIGHT. COPIOUS MOISTURE AND LIFT WILL CAUSE WIDESPREAD
PRECIPITATION TO DEVELOP BY THIS AFTERNOON AND WILL CONTINUE
THROUGH MIDDAY FRIDAY. THE SNOW LEVEL WILL BE AROUND 6500 FT
THROUGH TONIGHT AND WILL RISE TO ABOVE 8000 FT BY FRIDAY
AFTERNOON. THE HIGHEST SNOWFALL ACCUMULATIONS WILL OCCUR OVER THE
SOUTHERN LARAMIE RANGE AND SNOWY RANGE WHERE AROUND A FOOT OF
SNOW IS EXPECTED. NORTH TO NORTHEAST WINDS WILL ALSO BE GUSTY
THROUGH FRIDAY MORNING CAUSING AREAS OF BLOWING SNOW. THERE WILL
LIKELY BE SIGNIFICANT IMPACTS TO TRAVEL...ESPECIALLY ALONG
INTERSTATE 80 FROM BUFORD TO ARLINGTON.

WYZ115>117-161745-
/O.CAN.KCYS.WW.Y.0010.000000T0000Z-150416T1500Z/
/O.UPG.KCYS.WS.A.0006.150417T0000Z-150418T0000Z/
/O.NEW.KCYS.WS.W.0006.150416T2100Z-150417T1800Z/
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER
341 AM MDT THU APR 16 2015

...WINTER STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
NOON MDT FRIDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON MDT FRIDAY. THE WINTER WEATHER ADVISORY HAS BEEN
CANCELLED. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 8 INCHES OF SNOW BELOW 8000
  FEET WITH 10 TO 12 INCHES OVER THE SOUTH LARAMIE RANGE.

* WINDS/VISIBILITY...NORTH TO NORTHEAST 20 TO 25 MPH WITH GUSTS TO
  35 MPH. VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES
  IN HEAVIER SNOW AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND
  SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

WYZ103-105-106-110-161745-
/O.CAN.KCYS.WW.Y.0010.000000T0000Z-150416T1500Z/
/O.UPG.KCYS.WS.A.0006.150417T0000Z-150418T0000Z/
/O.NEW.KCYS.WW.Y.0011.150416T2100Z-150417T1800Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
341 AM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
NOON MDT FRIDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON MDT FRIDAY. THE WINTER WEATHER ADVISORY HAS BEEN
CANCELLED. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING. 

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES BELOW 8000 FEET WITH 6
  TO 8 INCHES OVER THE NORTHERN LARAMIE RANGE. 

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND
  SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ101-104-109-161045-
/O.CAN.KCYS.WW.Y.0010.000000T0000Z-150416T1500Z/
CONVERSE COUNTY LOWER ELEVATIONS-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
CENTRAL CARBON COUNTY-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP...
RAWLINS...SINCLAIR...HANNA
341 AM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

LITTLE ADDITIONAL SNOW ACCUMULATION IS EXPECTED IS EXPECTED
THROUGH THIS AFTERNOON.

$$

WYZ107-118-161045-
/O.CAN.KCYS.WS.A.0006.150417T0000Z-150418T0000Z/
EAST PLATTE COUNTY-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...CHEYENNE
341 AM MDT THU APR 16 2015

...WINTER STORM WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
STORM WATCH. 

AS THE SNOW LEVEL IS EXPECTED TO REMAIN ABOVE 6500 FEET THROUGH
MUCH OF THE UPCOMING STORM...SNOWFALL ACCUMULATIONS ARE EXPECTED
TO BE LIGHT FROM CHEYENNE TO WHEATLAND.

$$

WYZ114-161745-
/O.UPG.KCYS.WS.A.0006.150417T0000Z-150418T0000Z/
/O.NEW.KCYS.WS.W.0006.150416T2100Z-150417T1800Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
341 AM MDT THU APR 16 2015

...WINTER STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
NOON MDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON MDT FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...10-14 INCHES OF SNOW.

* WINDS/VISIBILITY...NORTH TO NORTHEAST 20 TO 25 MPH WITH GUSTS TO
  35 MPH. VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN
  HEAVIER SNOW AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL.  ROADS WILL BECOME SNOW COVERED AND
  SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

WYZ112-161745-
/O.NEW.KCYS.WW.Y.0011.150416T2100Z-150417T1800Z/
SIERRA MADRE RANGE-
341 AM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
NOON MDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON MDT FRIDAY.

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 9 INCHES OF SNOW.

* WINDS/VISIBILITY...NORTHEAST 20 TO 25 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN HEAVIER
  SNOW AND BLOWING SNOW.

* IMPACTS....MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND
  SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
12 follow-up statements
627 
WWUS45 KCYS 161105 RRB
WSWCYS

URGENT - WINTER WEATHER MESSAGE...DELAYED
NATIONAL WEATHER SERVICE CHEYENNE WY
505 AM MDT THU APR 16 2015

...HEAVY SNOW AND BLOWING SNOW TO IMPACT SOUTHEAST WYOMING
MOUNTAINS AND HIGH VALLEYS FROM LATE THIS AFTERNOON THROUGH
FRIDAY MORNING...

.A STORM SYSTEM WILL REMAIN STATIONARY OVER COLORADO THROUGH
FRIDAY NIGHT. COPIOUS MOISTURE AND LIFT WILL CAUSE WIDESPREAD
PRECIPITATION TO DEVELOP BY THIS AFTERNOON AND WILL CONTINUE
THROUGH MIDDAY FRIDAY. THE SNOW LEVEL WILL BE AROUND 6500 FT
THROUGH TONIGHT AND WILL RISE TO ABOVE 8000 FT BY FRIDAY
AFTERNOON. THE HIGHEST SNOWFALL ACCUMULATIONS WILL OCCUR OVER THE
SOUTHERN LARAMIE RANGE AND SNOWY RANGE WHERE AROUND A FOOT OF
SNOW IS EXPECTED. NORTH TO NORTHEAST WINDS WILL ALSO BE GUSTY
THROUGH FRIDAY MORNING CAUSING AREAS OF BLOWING SNOW. THERE WILL
LIKELY BE SIGNIFICANT IMPACTS TO TRAVEL...ESPECIALLY ALONG
INTERSTATE 80 FROM BUFORD TO ARLINGTON.

WYZ114>117-162300-
/O.CON.KCYS.WS.W.0006.150416T2100Z-150417T1800Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
505 AM MDT THU APR 16 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON MDT FRIDAY...

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 9 INCHES OF SNOW BELOW 8000
  FEET WITH 10 TO 14 INCHES OVER THE SOUTH LARAMIE RANGE AND THE
  SNOWY RANGE.

* WINDS/VISIBILITY...NORTH TO NORTHEAST 20 TO 25 MPH WITH GUSTS 
  TO 35 MPH. VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT 
  TIMES IN HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-106-110-112-162300-
/O.CON.KCYS.WW.Y.0011.150416T2100Z-150417T1800Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SIERRA MADRE RANGE-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
505 AM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON MDT FRIDAY...

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES BELOW 8000 FEET WITH 6
  TO 8 INCHES OVER THE NORTH LARAMIE RANGE.

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN HEAVIER
  SNOW AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
517 
WWUS45 KCYS 161753
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1153 AM MDT THU APR 16 2015

...HEAVY SNOW AND BLOWING SNOW TO IMPACT SOUTHEAST WYOMING
MOUNTAINS AND HIGH VALLEYS THROUGH FRIDAY MORNING...

.A STORM SYSTEM WILL REMAIN STATIONARY OVER COLORADO THROUGH
FRIDAY NIGHT. COPIOUS MOISTURE AND LIFT WILL CAUSE WIDESPREAD
PRECIPITATION TO DEVELOP BY THIS AFTERNOON AND WILL CONTINUE
THROUGH MIDDAY FRIDAY. THE SNOW LEVEL WILL BE AROUND 6000 FT
THROUGH TONIGHT AND WILL RISE TO ABOVE 7500 FT BY FRIDAY
AFTERNOON. THE HIGHEST SNOWFALL ACCUMULATIONS WILL OCCUR OVER THE
SOUTHERN LARAMIE RANGE AND SNOWY RANGE WHERE AROUND A FOOT OF SNOW
IS EXPECTED. NORTH TO NORTHEAST WINDS WILL ALSO BE GUSTY THROUGH
FRIDAY MORNING CAUSING AREAS OF BLOWING SNOW. THERE WILL LIKELY BE
SIGNIFICANT IMPACTS TO TRAVEL...ESPECIALLY ALONG INTERSTATE 80
FROM BUFORD TO ARLINGTON.

WYZ114>117-170200-
/O.EXT.KCYS.WS.W.0006.150416T1753Z-150417T1800Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
1153 AM MDT THU APR 16 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON MDT FRIDAY...

* TIMING...THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 9 INCHES OF SNOW BELOW 8000 
  FEET WITH 10 TO 14 INCHES OVER THE SOUTH LARAMIE RANGE AND THE 
  SNOWY RANGE. 

* WINDS/VISIBILITY...NORTH TO NORTHEAST 20 TO 25 MPH WITH GUSTS 
  TO 35 MPH. VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT 
  TIMES IN HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ118-170200-
/O.EXB.KCYS.WW.Y.0011.150416T1753Z-150417T1800Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITY OF...CHEYENNE
1153 AM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL NOON MDT
FRIDAY.

* TIMING...THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES BELOW 7000 FEET.

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN HEAVIER
  SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ112-170200-
/O.EXT.KCYS.WW.Y.0011.150416T1753Z-150417T1800Z/
SIERRA MADRE RANGE-
1153 AM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MDT FRIDAY...

* TIMING...THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES BELOW 8000 FEET WITH 
  6 TO 8 INCHES OVER THE NORTH LARAMIE RANGE. 

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN 
  HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ103-105-106-110-170200-
/O.CON.KCYS.WW.Y.0011.150416T2100Z-150417T1800Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
1153 AM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON MDT FRIDAY...

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES BELOW 8000 FEET WITH 
  6 TO 8 INCHES OVER THE NORTH LARAMIE RANGE. 

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN 
  HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
741 
WWUS45 KCYS 162029
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
229 PM MDT THU APR 16 2015

...HEAVY SNOW AND SOME BLOWING SNOW TO IMPACT SOUTHEAST WYOMING
MOUNTAINS AND HIGH VALLEYS THROUGH FRIDAY MORNING...

.A STORM SYSTEM WILL MOVE SLOWLY NORTHEAST ACROSS COLORADO
THROUGH FRIDAY NIGHT. COPIOUS MOISTURE AND LIFT WILL CAUSE
WIDESPREAD PRECIPITATION TO CONTINUE THROUGH MIDDAY FRIDAY.
THE SNOW SHOULD TAPER OFF SOME THIS EVENING BUT IS EXPECTED TO
INCREASE AGAIN LATER TONIGHT INTO FRIDAY MORNING. THE HIGHEST
SNOWFALL ACCUMULATIONS WILL OCCUR OVER THE SOUTHERN LARAMIE RANGE
AND SNOWY RANGE WHERE AROUND A FOOT OF SNOW IS EXPECTED. NORTH TO
NORTHEAST WINDS WILL ALSO BE GUSTY THROUGH FRIDAY MORNING CAUSING
AREAS OF BLOWING SNOW. THERE WILL LIKELY BE SIGNIFICANT IMPACTS TO
TRAVEL...ESPECIALLY ALONG INTERSTATE 80 FROM BUFORD TO ARLINGTON.

WYZ114>117-171000-
/O.CON.KCYS.WS.W.0006.000000T0000Z-150417T1800Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
229 PM MDT THU APR 16 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* TIMING...THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...6 TO 9 INCHES OF SNOW BELOW 8000 
  FEET WITH 10 TO 14 INCHES OVER THE SOUTH LARAMIE RANGE AND THE 
  SNOWY RANGE. 

* WINDS/VISIBILITY...NORTH TO NORTHEAST 20 TO 25 MPH WITH GUSTS 
  TO 35 MPH. VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT 
  TIMES IN HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ112-118-171000-
/O.CON.KCYS.WW.Y.0011.000000T0000Z-150417T1800Z/
SIERRA MADRE RANGE-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITY OF...CHEYENNE
229 PM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
FRIDAY...

* TIMING...THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WINDS/VISIBILITY...NORTH 10 TO 20 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN HEAVIER
  SNOW AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ103-105-106-110-171000-
/O.CON.KCYS.WW.Y.0011.150416T2100Z-150417T1800Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
229 PM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
FRIDAY...

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES BELOW 8000 FEET WITH 
  6 TO 8 INCHES OVER THE NORTH LARAMIE RANGE. 

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN 
  HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
491 
WWUS45 KCYS 162333
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
533 PM MDT THU APR 16 2015

...HEAVY SNOW AND SOME BLOWING SNOW TO IMPACT SOUTHEAST WYOMING
MOUNTAINS AND HIGH VALLEYS THROUGH FRIDAY MORNING...

.A STORM SYSTEM WILL MOVE SLOWLY NORTHEAST ACROSS COLORADO
THROUGH FRIDAY NIGHT. COPIOUS MOISTURE AND LIFT WILL CAUSE
WIDESPREAD PRECIPITATION TO CONTINUE THROUGH MIDDAY FRIDAY. THE
SNOW SHOULD TAPER OFF SOME THIS EVENING BUT IS EXPECTED TO
INCREASE AGAIN LATER TONIGHT INTO FRIDAY MORNING. THE HIGHEST
SNOWFALL ACCUMULATIONS WILL OCCUR OVER THE SOUTHERN LARAMIE RANGE
AND SNOWY RANGE WHERE OVER A FOOT OF SNOW IS EXPECTED. NORTH TO
NORTHEAST WINDS WILL ALSO BE GUSTY THROUGH FRIDAY MORNING CAUSING
AREAS OF BLOWING SNOW. THERE WILL LIKELY BE SIGNIFICANT IMPACTS TO
TRAVEL...ESPECIALLY ALONG INTERSTATE 80 FROM CHEYENNE TO
ARLINGTON.

WYZ118-171200-
/O.UPG.KCYS.WW.Y.0011.000000T0000Z-150417T1800Z/
/O.EXA.KCYS.WS.W.0006.000000T0000Z-150417T1800Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITY OF...CHEYENNE
533 PM MDT THU APR 16 2015

...WINTER STORM WARNING IN EFFECT UNTIL NOON MDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL NOON MDT
FRIDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

* TIMING...THROUGH FRIDAY MORNING. HEAVIEST SNOW WILL OCCUR FROM 3
  AM THROUGH LATE MORNING FRIDAY.

* TOTAL SNOW ACCUMULATIONS...9 TO 12 INCHES.

* WINDS/VISIBILITY...NORTH 10 TO 20 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO UNDER A HALF MILE AT TIMES IN
  HEAVIER SNOW AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

WYZ114>117-171200-
/O.CON.KCYS.WS.W.0006.000000T0000Z-150417T1800Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
533 PM MDT THU APR 16 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* TIMING...THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...8 TO 10 INCHES OF SNOW BELOW 8000
  FEET WITH 12 TO 18 INCHES OVER THE SOUTH LARAMIE RANGE AND THE
  SNOWY RANGE.

* WINDS/VISIBILITY...NORTH TO NORTHEAST 20 TO 25 MPH WITH GUSTS TO
  35 MPH. VISIBILITIES MAY BE REDUCED TO UNDER A HALF MILE AT
  TIMES IN HEAVIER SNOW AND BLOWING SNOW.

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-106-110-112-171200-
/O.CON.KCYS.WW.Y.0011.000000T0000Z-150417T1800Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SIERRA MADRE RANGE-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
533 PM MDT THU APR 16 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
FRIDAY...

* TIMING...LATE THIS AFTERNOON THROUGH FRIDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES BELOW 8000 FEET WITH 
  6 TO 8 INCHES OVER THE NORTH LARAMIE RANGE. 

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN 
  HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...MAINLY TO TRAVEL. ROADS WILL BECOME SNOW COVERED AND 
  SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
336 
WWUS45 KCYS 170922
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
322 AM MDT FRI APR 17 2015

...PERIODS OF SNOW TO CONTINUE ACROSS PORTIONS OF SOUTHEAST
WYOMING THROUGH MUCH OF THE DAY...

.A STORM SYSTEM WILL SLOWLY LIFT NORTHEAST ACROSS COLORADO
TODAY AND TONIGHT. ITS ASSOCIATED MOISTURE WILL CONTINUE TO
PRODUCE WIDESPREAD PRECIPITATION ACROSS SOUTHEAST WYOMING. SNOW
LEVELS HAVE BEEN HOVERING AROUND 5500 FEET WITH THE RAIN SNOW
LINE BETWEEN CHEYENNE AND PINE BLUFFS. MANY AREAS HAVE ALREADY
RECEIVED AT LEAST 6 INCHES ABOVE 5500 FEET AND WILL SEE ADDITIONAL
ACCUMULATIONS TODAY AND TONIGHT. SNOW WILL BEGIN WINDING DOWN THIS
EVENING. TRAVEL WILL CONTINUE TO BE IMPACTED MAINLY IN SOUTHEAST
WYOMING ABOVE 5500 FEET.

WYZ114>117-172300-
/O.EXT.KCYS.WS.W.0006.000000T0000Z-150418T0600Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
322 AM MDT FRI APR 17 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...UNTIL MIDNIGHT TONIGHT.

* ADDITIONAL SNOW ACCUMULATIONS...3 TO 8 INCHES TODAY AND
  TONIGHT. HIGHEST AMOUNTS WILL BE OVER THE SOUTHERN LARAMIE
  RANGE.

* WINDS/VISIBILITY...NORTH TO NORTHEAST 15 TO 20 MPH WITH GUSTS TO
  30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE HALF MILE
  AT TIMES IN HEAVIER SNOW AND BLOWING SNOW.

* IMPACTS...SNOW COVERED AND SLIPPERY ROADWAYS WILL OCCUR. SNOW IS
  VERY WET AND HEAVY. TAKE PLENTY OF BREAKS WHILE SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ118-172100-
/O.EXT.KCYS.WS.W.0006.000000T0000Z-150417T2100Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITY OF...CHEYENNE
322 AM MDT FRI APR 17 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...

* TIMING...THROUGH 3 PM TODAY.

* ADDITIONAL SNOW ACCUMULATIONS...2 TO 5 INCHES THROUGH EARLY THIS
  AFTERNOON. HIGHEST AMOUNTS WILL BE ABOVE 6000 FEET.

* WINDS/VISIBILITY...NORTH 10 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO UNDER A HALF MILE AT TIMES IN 
  HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...SNOW COVERED AND SLIPPERY ROADWAYS WILL OCCUR. SNOW IS
  VERY WET AND HEAVY. TAKE PLENTY OF BREAKS WHILE SHOVELING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-106-110-112-172300-
/O.EXT.KCYS.WW.Y.0011.000000T0000Z-150418T0600Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SIERRA MADRE RANGE-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
322 AM MDT FRI APR 17 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...UNTIL MIDNIGHT TONIGHT.

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN 
  HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...SNOW COVERED AND SLIPPERY ROADWAYS WILL OCCUR. SNOW IS
  VERY WET AND HEAVY. TAKE PLENTY OF BREAKS WHILE SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

HAHN
991 
WWUS45 KCYS 171819
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1219 PM MDT FRI APR 17 2015

...PERIODS OF SNOW TO CONTINUE ACROSS PORTIONS OF SOUTHEAST
WYOMING THROUGH EARLY SATURDAY...

.A STORM SYSTEM WILL LIFT SLOWLY NORTHEAST ACROSS COLORADO THIS
AFTERNOON AND TONIGHT. WIDESPREAD PRECIPITATION CONTINUES ACROSS
MUCH OF THE REGION...WITH SNOW AT ELEVATIONS ABOVE 6250 FEET. THE
RAIN AND SNOW LINE HAS PUSHED WESTWARD INTO CHEYENNE...ENDING ANY
ACCUMULATING SNOW OVER THE PLAINS FOR THE TIME BEING. SNOW WILL
PERSIST FOR HIGHER ELEVATION AREAS WEST OF CHEYENNE. ANOTHER ROUND
OF ACCUMULATING SNOW IS EXPECTED LATE TONIGHT AND EARLY SATURDAY.
TRAVEL WILL CONTINUE TO BE SEVERELY IMPACTED ALONG INTERSTATE 80
BETWEEN RAWLINS AND CHEYENNE. 

WYZ118-180230-
/O.CAN.KCYS.WS.W.0006.000000T0000Z-150417T2100Z/
/O.EXB.KCYS.WW.Y.0011.000000T0000Z-150418T1200Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITY OF...CHEYENNE
1219 PM MDT FRI APR 17 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 6 AM MDT
SATURDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* TIMING...SNOW WILL MIX WITH OR CHANGE ENTIRELY TO RAIN THIS
  AFTERNOON. ANOTHER BAND OF MODERATE TO HEAVY SNOW IS EXPECTED
  DURING THE LATE EVENING AND OVERNIGHT.

* ADDITIONAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO LESS THAN ONE MILE AT TIMES.

* IMPACTS...SNOW COVERED AND SLIPPERY ROADWAYS WILL OCCUR. SNOW 
  IS VERY WET AND HEAVY. TAKE PLENTY OF BREAKS WHILE SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ114>117-180230-
/O.EXT.KCYS.WS.W.0006.000000T0000Z-150418T1200Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
1219 PM MDT FRI APR 17 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM MDT SATURDAY...

* TIMING...THROUGH EARLY SATURDAY MORNING. 

* ADDITIONAL SNOW ACCUMULATIONS...5 TO 10 INCHES. HIGHEST AMOUNTS
  WILL BE OVER THE SOUTHERN LARAMIE RANGE.

* WINDS/VISIBILITY...NORTH TO NORTHEAST 15 TO 20 MPH WITH GUSTS 
  TO 30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE HALF 
  MILE AT TIMES IN HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...SNOW COVERED AND SLIPPERY ROADWAYS WILL OCCUR. SNOW 
  IS VERY WET AND HEAVY. TAKE PLENTY OF BREAKS WHILE SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-106-110-112-180230-
/O.EXT.KCYS.WW.Y.0011.000000T0000Z-150418T1200Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SIERRA MADRE RANGE-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
1219 PM MDT FRI APR 17 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MDT
SATURDAY...

* TIMING...THROUGH EARLY SATURDAY MORNING. 

* ADDITIONAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH. 
  VISIBILITIES MAY BE REDUCED TO ONE HALF MILE AT TIMES IN 
  HEAVIER SNOW AND BLOWING SNOW. 

* IMPACTS...SNOW COVERED AND SLIPPERY ROADWAYS WILL OCCUR. SNOW 
  IS VERY WET AND HEAVY. TAKE PLENTY OF BREAKS WHILE SHOVELING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

HAMMER
160 
WWUS45 KCYS 172240
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
440 PM MDT FRI APR 17 2015

...PERIODS OF SNOW WILL CONTINUE ACROSS MUCH OF SOUTHEAST WYOMING
THROUGH SATURDAY MORNING... 

.A STORM SYSTEM WILL CONTINUE TO LIFT NORTHEAST ACROSS THE CENTRAL
ROCKIES TONIGHT. WIDESPREAD PRECIPITATION CONTINUES ACROSS MUCH OF
THE REGION...WITH SNOW AT ELEVATIONS ABOVE 6250 FEET. WHILE HEAVY
SNOW APPEARS TO HAVE ENDED...ADDITIONAL ACCUMULATIONS ARE POSSIBLE
THROUGH LATE TONIGHT. TRAVEL WILL CONTINUE TO BE SEVERELY IMPACTED
ALONG INTERSTATE 80 BETWEEN RAWLINS AND CHEYENNE. 

WYZ114>117-181200-
/O.CON.KCYS.WS.W.0006.000000T0000Z-150418T1200Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
440 PM MDT FRI APR 17 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
SATURDAY...

* TIMING...THROUGH EARLY SATURDAY MORNING.

* ADDITIONAL SNOW ACCUMULATIONS...5 TO 10 INCHES. HIGHEST 
  AMOUNTS WILL BE OVER THE SOUTHERN LARAMIE RANGE. 

* WINDS/VISIBILITY...NORTH TO NORTHEAST 15 TO 20 MPH WITH GUSTS TO
  30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN THREE QUARTERS
  OF A MILE AT TIMES. 

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED. BE ESPECIALLY
  CAUTIOUS IN THE MORNING AS WET AND SLUSHY ROADS COULD FREEZE
  OVERNIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-106-110-112-118-181200-
/O.CON.KCYS.WW.Y.0011.000000T0000Z-150418T1200Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SIERRA MADRE RANGE-
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN...CHEYENNE
440 PM MDT FRI APR 17 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
SATURDAY...

* TIMING...THROUGH EARLY SATURDAY MORNING.

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO THREE QUARTERS OF A MILE AT
  TIMES. 

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED. BE ESPECIALLY
  CAUTIOUS IN THE MORNING AS WET AND SLUSHY ROADS COULD FREEZE
  OVERNIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

HAMMER
755 
WWUS45 KCYS 180928
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
328 AM MDT SAT APR 18 2015

...PERIODS OF SNOW WILL CONTINUE ACROSS MUCH OF SOUTHEAST WYOMING
THROUGH THIS MORNING...

.A SLOW MOVING UPPER LOW WILL MOVE ACROSS EASTERN COLORADO TODAY
WITH PERIODS OF SNOW...HEAVY AT TIMES...FALLING ACROSS THE
ADVISORY AND WARNING AREAS. ADDITIONAL ACCUMULATIONS OF 1 TO 4 
INCHES ARE EXPECTED THROUGH MIDDAY TODAY...WITH LOCALLY HIGHER
AMOUNTS OVER THE MOUNTAINS...ESPECIALLY THE SOUTHERN LARAMIE
RANGE. TRAVEL WILL LIKELY CONTINUE TO BE IMPACTED OVER THE
SUMMIT OF INTERSTATE 80 BETWEEN LARAMIE AND CHEYENNE.

WYZ118-181030-
/O.CAN.KCYS.WW.Y.0011.000000T0000Z-150418T1200Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITY OF...CHEYENNE
328 AM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

$$

WYZ114>117-181800-
/O.EXT.KCYS.WS.W.0006.000000T0000Z-150418T1800Z/
SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING...
LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...
HARRIMAN...WHITAKER
328 AM MDT SAT APR 18 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON MDT TODAY...

* TIMING...THROUGH NOON TODAY.

* ADDITIONAL SNOW ACCUMULATIONS...2 TO 5 INCHES. HIGHEST AMOUNTS
  WILL BE OVER THE SOUTHERN LARAMIE RANGE.

* WINDS/VISIBILITY...NORTH TO NORTHEAST 15 TO 20 MPH WITH GUSTS TO
  30 MPH. VISIBILITIES WILL BE REDUCED TO NEAR ZERO AT TIMES.

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-106-110-112-181800-
/O.EXT.KCYS.WW.Y.0011.000000T0000Z-150418T1800Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SIERRA MADRE RANGE-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...ARLINGTON...
ELK MOUNTAIN
328 AM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MDT TODAY...

* TIMING...THROUGH NOON.

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WINDS/VISIBILITY...NORTH 15 TO 20 MPH WITH GUSTS TO 30 MPH.
  VISIBILITIES MAY BE REDUCED TO NEAR ZERO AT TIMES.

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

RUBIN
795 
WWUS45 KCYS 181721
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1121 AM MDT SAT APR 18 2015

...HEAVY SNOW TO CONTINUE INTO EARLY EVENING OVER PORTIONS OF
SOUTHEAST WYOMING...

HEAVY SNOW WILL CONTINUE TO FALL OVER PORTIONS OF SOUTHEAST
WYOMING INTO THE EVENING. THE HEAVY SNOW WILL OCCUR FROM THE
NORTHERN LARAMIE RANGE...INTO THE ARLINGTON AREA AND SNOWY
MOUNTAIN RANGE. 6 TO UPWARDS OF 10 ADDITIONAL INCHES OF WET 
HEAVY SNOW IS LIKELY THROUGH EARLY THIS EVENING.

WYZ115-190300-
/O.CAN.KCYS.WS.W.0006.000000T0000Z-150418T1800Z/
/O.EXB.KCYS.WW.Y.0011.000000T0000Z-150419T0300Z/
LARAMIE VALLEY-
INCLUDING THE CITY OF...LARAMIE
1121 AM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 9 PM MDT
THIS EVENING. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* TIMING...OCCASIONAL PERIODS OF SNOW WITH SNOW ENDING THIS
  EVENING.

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WINDS/VISIBILITY...VISIBILITIES MAY BE REDUCED TO 1/2 MILE AT
  TIMES DUE TO FALLING SNOW.

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ116-117-181830-
/O.CAN.KCYS.WS.W.0006.000000T0000Z-150418T1800Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER
1121 AM MDT SAT APR 18 2015

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
STORM WARNING. 

SNOW HAS ENDED ACROSS THE AREA AT THIS TIME. ANOTHER BAND OF LIGHT
SNOW IS POSSIBLE LATE TODAY INTO THIS EVENING...BUT ADDITION SNOW
ACCUMULATIONS WILL BE MINIMAL. 

$$

WYZ110-190300-
/O.UPG.KCYS.WW.Y.0011.000000T0000Z-150418T1800Z/
/O.EXB.KCYS.WS.W.0006.000000T0000Z-150419T0300Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN
1121 AM MDT SAT APR 18 2015

...WINTER STORM WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 9 PM MDT
THIS EVENING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

* TIMING...HEAVY SNOW WITH SNOW ENDING THIS EVENING.

* ADDITIONAL SNOW ACCUMULATIONS...5 TO 8 INCHES.

* WINDS/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN ONE
  QUARTER MILE AT TIMES DUE TO HEAVY SNOW.

* IMPACTS...SOME ROADS WILL BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

WYZ114-190300-
/O.EXT.KCYS.WS.W.0006.000000T0000Z-150419T0300Z/
SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1121 AM MDT SAT APR 18 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

* TIMING...HEAVY SNOW WITH SNOW ENDING THIS EVENING.

* ADDITIONAL SNOW ACCUMULATIONS...6 TO 10 INCHES.

* WINDS/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN ONE
  QUARTER MILE AT TIMES DUE TO FALLING SNOW. 

* IMPACTS...ROADS WILL BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ113-190300-
/O.EXB.KCYS.WW.Y.0011.000000T0000Z-150419T0300Z/
UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...SARATOGA...ENCAMPMENT...RIVERSIDE
1121 AM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 9 PM MDT
THIS EVENING.

* TIMING...THROUGH EARLY EVENING.

* ADDITIONAL SNOW ACCUMULATIONS...2 TO 5 INCHES.

* WINDS/VISIBILITY...VISIBILITIES MAY BE REDUCED TO LESS THAN ONE
  HALF MILE AT TIMES.

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ103-105-106-112-190300-
/O.EXT.KCYS.WW.Y.0011.000000T0000Z-150419T0300Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
SIERRA MADRE RANGE-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX
1121 AM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

* TIMING...PERIOD OF SNOW TODAY WITH SNOW ENDING THIS EVENING.

* ADDITIONAL SNOW ACCUMULATIONS...2 TO 6 INCHES.

* WINDS/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN ONE
  HALF MILE AT TIMES.

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
SML
908 
WWUS45 KCYS 182144
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
344 PM MDT SAT APR 18 2015

...SNOW ENDING THIS EVENING OVER MOST OF SOUTHEAST WYOMING...

HEAVY SNOW OVER PORTIONS OF SOUTHEAST WYOMING WILL END THIS
EVENING. A NARROW BAND OF HEAVY SNOW WILL CONTINUE FROM THE
NORTHERN LARAMIE RANGE...INTO THE ELK MOUNTAINS AREA...AND 
PORTIONS OF THE SNOWY AND SIERRA MADRE RANGES. SEVERAL MORE
INCHES OF HEAVY WET SNOW IS EXPECTED INTO THIS EVENING BEFORE
TAPERING OFF.

WYZ106-115-182245-
/O.CAN.KCYS.WW.Y.0011.000000T0000Z-150419T0300Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-LARAMIE VALLEY-
INCLUDING THE CITIES OF...BORDEAUX...LARAMIE
344 PM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

SNOW HAS ENDED ACROSS THE SOUTHERN LARAMIE VALLEY AND SOUTHWESTERN
PLATTE COUNTY...HOWEVER ANOTHER PERIOD OF LIGHT SNOW IS EXPECTED
THIS EVENING BUT NEW SNOW ACCUMULATIONS WILL BE MINIMAL.

$$

WYZ110-114-190300-
/O.CON.KCYS.WS.W.0006.000000T0000Z-150419T0300Z/
NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...CENTENNIAL...
ALBANY...WOODS LANDING
344 PM MDT SAT APR 18 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

* TIMING...SNOW ENDING THIS EVENING.

* ADDITIONAL SNOW ACCUMULATIONS...3 TO 5 INCHES.

* WINDS/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  ONE QUARTER MILE AT TIMES DUE TO FALLING SNOW. 

* IMPACTS...ROADS WILL BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-112-113-190300-
/O.CON.KCYS.WW.Y.0011.000000T0000Z-150419T0300Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...SARATOGA...ENCAMPMENT...
RIVERSIDE
344 PM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

* TIMING...PERIOD OF SNOW TODAY WITH SNOW ENDING THIS EVENING.

* ADDITIONAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  ONE HALF MILE AT TIMES. 

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
541 
WWUS45 KCYS 190242
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
842 PM MDT SAT APR 18 2015

...SNOW ENDING TONIGHT OVER MOST OF SOUTHEAST WYOMING...

MODERATE TO LOCALLY HEAVY SNOW WILL CONTINUE FOR A FEW MORE HOURS
OVER PORTIONS OF SOUTHEAST WYOMING...AND WILL DIMINISH
SIGNIFICANTLY AFTER 11 PM. A NARROW BAND OF MODERATE TO HEAVY
SNOW CONTINUES FROM THE NORTHERN LARAMIE RANGE...INTO THE
ARLINGTON AREA...AND PORTIONS OF THE SNOWY AND SIERRA MADRE RANGES
THIS EVENING...AND LOOKS TO CONTINUE THROUGH AT LEAST 11 PM BEFORE
STEADILY DIMINISHING OVERNIGHT. VISIBILITIES WILL BE REDUCED TO
LESS THAN ONE HALF MILE WITH AN ADDITIONAL INCH OR TWO OF HEAVY
WET SNOW POSSIBLE.

WYZ110-114-190500-
/O.EXT.KCYS.WS.W.0006.000000T0000Z-150419T0500Z/
NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...CENTENNIAL...
ALBANY...WOODS LANDING
842 PM MDT SAT APR 18 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM MDT THIS
EVENING...

* TIMING...SNOW WILL CONTINUE THROUGH AT LEAST 11 PM...AND WILL
  SIGNIFICANTLY DIMINISH THEREAFTER.

* ADDITIONAL SNOW ACCUMULATIONS... UP TO 2 INCHES.

* WINDS/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN ONE
  HALF MILE AT TIMES DUE TO FALLING SNOW.

* IMPACTS...ROADS WILL BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WYZ103-105-112-113-190500-
/O.EXT.KCYS.WW.Y.0011.000000T0000Z-150419T0500Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...SARATOGA...ENCAMPMENT...
RIVERSIDE
842 PM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MDT THIS
EVENING...

* TIMING...PERIOD OF SNOW THIS EVENING. 

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 2 INCHES.

* WINDS/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN 
  ONE HALF MILE AT TIMES. 

* IMPACTS...ROADS MAY BE SLICK AND SNOW COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
713 
WWUS45 KCYS 190452
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1052 PM MDT SAT APR 18 2015

WYZ110-114-190600-
/O.EXP.KCYS.WS.W.0006.000000T0000Z-150419T0500Z/
NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...CENTENNIAL...
ALBANY...WOODS LANDING
1052 PM MDT SAT APR 18 2015

...WINTER STORM WARNING WILL EXPIRE AT 11 PM MDT THIS EVENING...

SNOW WILL CONTINUE TO DIMINISH AND MOVE EAST TONIGHT...SO WILL
ALLOW THE WARNING TO EXPIRE.

$$

WYZ103-105-112-113-190600-
/O.EXP.KCYS.WW.Y.0011.000000T0000Z-150419T0500Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...SARATOGA...ENCAMPMENT...
RIVERSIDE
1052 PM MDT SAT APR 18 2015

...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MDT THIS
EVENING...

SNOW WILL CONTINUE TO DIMINISH AND MOVE EAST TONIGHT...SO WILL
ALLOW THE ADVISORY TO EXPIRE.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Apr 15, 10:46 PM MDT, 4 hours 55 minutes earlier.

Area forecast discussion, Apr 15, 10:46 PM MDT, 4 hours 55 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1046 PM MDT WED APR 15 2015

.UPDATE...
ISSUED AT 1034 PM MDT WED APR 15 2015

RADAR CONTINUES TO SHOW MOISTURE STREAMING NORTH OUT OF NORTHERN
COLORADO THIS EVENING. WITH REPORTS OF 5-6 INCHES OF SNOW IN
LARAMIE...WENT AHEAD AND EXPANDED THE ADVISORY SOUTH AS WE COULD
SEE ANOTHER 1-3 INCHES OVERNIGHT. ATTENTION TURNS TO THURSDAY
NIGHT AS LOW IN COLORADO SPINS OFF ANOTHER STRONGER PIECE OF
ENERGY INTO THE LARAMIE RANGE. GUIDANCE SHOWING QPFS WELL OVER AN
INCH BEGINNING THURSDAY AFTERNOON AND PERSISTING INTO FRIDAY
MORNING. WENT AHEAD WITH A WINTER STORM WATCH FOR THE
MOUNTAINS...ADJACENT FOOTHILLS AND THE SNOWY RANGE. UPDATES SENT
OUT EARLIER.

&&

.SHORT TERM...(THIS EVENING THROUGH FRIDAY NIGHT)
ISSUED AT 311 PM MDT WED APR 15 2015

TRICKY FORECAST THIS PERIOD WITH MAIN DIFFICULTIES BEING SNOW
LEVELS AND SNOWFALL AMOUNTS...AND AT WHAT TIMES THE HEAVIER
PRECIPITATION WILL OCCUR.

UPPER LOW TAKING SHAPE ALONG THE UTAH/COLORADO BORDER CURRENTLY
WITH AREAS OF RAIN AND SNOW ALONG AND WEST OF THE LARAMIE RANGE.
SOME CONVECTIVE ACTIVITY MOVING NORTH TOWARDS THE NEB PANHANDLE
FROM COLORADO AS WELL WITH A FEW LIGHTNING STRIKES NOTED IN THIS
ACTIVITY. EXPECT ALL THIS ACTIVITY TO CONTINUE MOVING NORTH AHEAD
OF AN IMPULSE RIDING UP THE EAST SIDE OF THE UPPER LOW THIS
EVENING THEN THERE SHOULD BE SOME LULL IN THE PCPN OVER THE
SOUTHERN PARTS OF THE CWA LATER THIS EVENING INTO THURSDAY BEHIND
THE IMPULSE WHILE THE MAIN UPPER LOW SINKS SLOWLY SOUTHWARD TO THE
4 CORNERS AREA. WILL MAINTAIN CURRENT WINTER WX ADVY AS IS AS THAT
AREA SHOULD STILL SEE MOSTLY SNOW.

CONDITIONS DETERIORATE AGAIN THURSDAY NIGHT AS THE UPPER LOW
DRIFTS SLOWLY ENE ACROSS COLORADO WITH NEXT SHORTWAVE LIKELY
ROTATING NORTH AND ACROSS THE CWA LATER THURSDAY NIGHT INTO
FRIDAY. HEAVIEST PCPN LOOKS LIKE IT WILL OCCUR THEN AND COULD GET
SOME DECENT SNOWS OVER HIGHER TERRAIN. 700MB TEMPS A BIT WARM
HOWEVER...ABOUT -2C...AND WARM GROUND MAY HINDER ACCUMULATIONS
SOME. WILL HOLD OFF ON ADDITIONAL HILITES AT THIS TIME AND LET
LATER SHIFTS LOOK AT NEWER RUNS. PCPN STILL FAIRLY WIDESPREAD ON
FRIDAY INTO FRIDAY NIGHT THOUGH MORE LIKELY OVER THE NORTH AS THE
IMPULSE CONTINUES TO RIDE NORTH AND NORTHWEST. SNOW LEVELS ALSO
RISING AS THE UPPER LOW FILLS SOME.

.LONG TERM...(SATURDAY THROUGH TUESDAY)
ISSUED AT 311 PM MDT WED APR 15 2015

UNSETTLED WEATHER WILL CONTINUE THROUGH THE WEEKEND AS A CLOSED LOW
TRANSLATES EASTWARD INTO THE CENTRAL PLAINS. PRECIPITATION IS LIKELY
TO LINGER THROUGH AT LEAST SUNDAY WITH WEAK MIDLEVEL ENERGY ROTATING
WESTWARD ACROSS THE CWA. FAIRLY COOL TOO WITH GFS 700 MILLIBAR TEMPS
FAILING TO CLIMB ABOVE 0 DEG C. THE MODELS ARE IN GOOD AGREEMENT W/
A KICKER SYSTEM DIVING INTO THE DAKOTAS AT 12Z SUN. THIS PUSHES THE
OTHER SYSTEM TO THE EAST AND SENDS A COLD FRONT SOUTH. MEDIUM RANGE
MODELS SHOW ENOUGH H7-H3 MOISTURE TO SUPPORT SHOWERS CONTINUING INTO
SUN. WOULD PROBABLY BE COLD ENOUGH FOR ALL SNOW ON SUN...BUT THERMAL
PROFILES WOULD SUGGEST ALL RAIN OR A RAIN/SNOW MIX FROM THE NE STATE
LINE INTO THE WESTERN PANHANDLE PRIOR TO FROPA. MAINTAINED LOWER END
POPS INTO EARLY NEXT WEEK WITH COOL CYCLONIC FLOW ALOFT. INSTABILITY
SHOWERS CANNOT BE RULED OUT...SO IT IS HARD TO FORECAST DRY. NOTHING
MAJOR THOUGH. TEMPERATURES SHOULD STAY ON THE COOL SIDE FOR MOST OF
THE PERIOD.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z THURSDAY NIGHT)
ISSUED AT 1034 PM MDT WED APR 15 2015

LATEST HRRR GUIDANCE USED FOR THE 06Z TAFS. WIDESPREAD IFR/LIFR
WITH NORTHEAST UPSLOPING FLOW. PRECIP BECOMES WIDESPREAD THURSDAY
AFTERNOON...WITH A POSSIBLE HEAVY SNOW EVENT THURSDAY NIGHT INTO
FRIDAY MORNING FOR SOUTHEAST WYOMING AND A WIDESPREAD MODERATE
RAIN EVENT FOR THE PANHANDLE AIRPORTS.

&&

.FIRE WEATHER...
ISSUED AT 311 PM MDT WED APR 15 2015

CONCERNS EXPECTED TO BE LOW THROUGH THE WEEKEND AS A COOL TO MILD
AIRMASS WILL RESIDE OVER THE DISTRICTS WITH PERIODS OF RAIN OR
SNOW BRINGING WETTING PRECIPITATION TO MUCH OF THE AREA.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER STORM WATCH FROM THURSDAY EVENING THROUGH FRIDAY
     AFTERNOON FOR WYZ103-105>107-110-114>118.

     WINTER WEATHER ADVISORY UNTIL 9 AM MDT THURSDAY FOR WYZ101-
     103>106-109-110-115>117.

NE...NONE.
&&

UPDATE...GCC
SHORT TERM...RE
LONG TERM...CLH
AVIATION...GCC
FIRE WEATHER...RE
Hazardous weather outlook, Apr 15, 10:57 PM MDT, 4 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1057 PM MDT WED APR 15 2015

WYZ101>119-170500-
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
1057 PM MDT WED APR 15 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING.

.DAY ONE...TONIGHT

SNOW WILL CONTINUE TO FALL MAINLY OVER THE SOUTHEAST WYOMING
MOUNTAINS TONIGHT. WINTER WEATHER ADVISORIES CONTINUE TO BE IN
EFFECT FOR ALL OF THE LARAMIE RANGE AND ADJACENT FOOTHILLS AND
HIGH VALLEYS. SEE THE LATEST WINTER WEATHER ADVISORY PRODUCT FOR
DETAILED INFORMATION.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NIGHTTIME SNOW ALONG WITH A DAYTIME RAIN/SNOW MIX ALONG AND WEST
OF THE LARAMIE RANGE WILL CONTINUE THURSDAY AND FRIDAY. MOST AREAS
EAST OF THE MOUNTAINS WILL SEE RAIN THROUGH THE PERIOD...THOUGH
SOME ACCUMULATIONS CAN BE EXPECTED ALONG INTERSTATE 25 AND THE
CHEYENNE RIDGE MAINLY THURSDAY NIGHT. A WINTER STORM WATCH IS IN
EFFECT FOR AREAS ABOVE ABOUT 6500 FEET THURSDAY NIGHT AND FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY SNOW ACCUMULATIONS TO THE
NATIONAL WEATHER SERVICE IN CHEYENNE AT 1 8 0 0 2 6 9 6 2 2 0.

NEZ002-003-019>021-054-055-095-096-170500-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
1057 PM MDT WED APR 15 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN
NEBRASKA.

.DAY ONE...TONIGHT

LIGHT SNOW WILL CONTINUE TO BE POSSIBLE TONIGHT.  SNOW
ACCUMULATIONS OF UP TO ONE HALF INCH WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

DAYTIME RAIN ALONG WITH NIGHTTIME LIGHT SNOW WILL A BE POSSIBILITY
CAN BE EXPECTED THURSDAY AND FRIDAY. LITTLE IF ANY SNOW
ACCUMULATIONS ARE EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY SMALL HAIL OR STRONG WINDS
ALONG WITH SNOWFALL ACCUMULATIONS TONIGHT TO THE NATIONAL WEATHER
SERVICE IN CHEYENNE AT 1 8 0 0 2 6 9 6 2 2 0.

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 7:32 PM MDTWinter Storm WatchCYSAlbany, Carbon, Converse, Laramie, Platte8 hr
Apr 16, 3:41 AM MDTWinter Weather AdvisoryCYSAlbany, Carbon, Converse, Laramie, Platte67 hr

Nearby

Winter Storm Warnings in Wyoming, 2015Every winter storm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.